Biology 10 Chapter 15 MCQs Test 1

In Biology 10 Chapter 15 MCQs Test 1, there are 15 MCQs. A total of 5 MCQs Tests are available from Chapter 15 of FBISE Class 10 Biology Book. We have prepared 75 multiple-choice questions, which are divided into five MCQs Tests.

Practice
MCQs Test No 1

110

Class 10 Biology
Chapter 15
Practice MCQs Test No 1

1 / 15

An organism has two different alleles for a single trait. Its genotype Is said to be;

Homozygous

Hemizygous

Heterozygous

Homologous

2 / 15

Genes contain Instructions for the synthesis of;

Vitamins

Proteins

Carbohydrates

Fats

3 / 15

Chromatin is made up of:

DNA+Protein

DNA

Proteins

None of these

4 / 15

A purple-flowered pea plant has the genotype PP. Which of the following statements about this plant is FALSE?

It has a homozygous dominant genotype

Its phenotype will be white flowers

When bred to a white-flowered plant, all offspring will be purple flowered

All the gametes produced will have the same flower colour allele

5 / 15

Charles Darwin proposed that organisms produce many more offspring than can possible survive on the limited amount of resources available to them. According to Darwin, the offspring that are most likely to survive are those that;

Are born first and grow fastest

Are best adapted to the environment

Have no natural predators

Are largest and most aggressive

6 / 15

Mendel's primary contribution to our understanding of inheritance was;

The idea that genes are found on chromosomes

Explanation of the patterns of inheritance

Determining that informations contained in DNA are for protein synthesis

The discovery of alleles

7 / 15

Chromosomes carry units of Inheritance called as;

None of these

Chromatin

genes

DNA

8 / 15

How many genetically different kinds of gametes an individual with genotype AAbb can produce?

4

2

8

1

9 / 15

In the cross-pollination between a true-breeding yellow pod plant and a true-breeding green pod plant, where green pod colour is dominant, the resulting offsprings (F1 generation) will be:

1/4 yellow, 3/4 green

1/4 green, 3/4 yellow

All green

All yellow

10 / 15

How many pairs of homologous chromosomes are there in human body cell?

40

22

23

46

11 / 15

Branch of biology that deals with the study of inheritance Is called as;

Artificial selection

Histology

Natural selection

Genetics

12 / 15

An organism's expressed physical trait, such as seed colour or pod shape, is called its:

Genotype

Phenotype

Karyotype

Physical type

13 / 15

Which of the following statements regarding genes is FALSE?

Genes consist of a long sequence of DNA

Each cell contains a single copy of every gene

Genes are located on chromosomes

A gene contains information for the production of a protein

14 / 15

Transmisslon of characteristics front parents to offsprings is called as;

Mutation

Inheritance

Co-dominance

Replication

15 / 15

DNA wraps around histone protein and forms rounded structures called as;

mRNA

Ribosomes

Lysosomes

Nucleosomes

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